Eramosa Formation (Silurian limestone and dolostone)
E930754
The Eramosa Formation is a Silurian-age carbonate rock unit in Ontario, Canada, noted for its finely laminated limestone and dolostone that preserve exceptionally detailed fossils and sedimentary structures.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Eramosa Formation | 0 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Silurian stratigraphic unit
ⓘ
carbonate rock unit ⓘ geologic formation ⓘ |
| bedding |
laminated
ⓘ
thinly bedded ⓘ |
| contains |
algal laminations
ⓘ
bedding-plane fossil assemblages ⓘ bituminous layers ⓘ fossil invertebrates ⓘ laminated microbial mats ⓘ stromatolitic structures ⓘ trace fossils ⓘ |
| country | Canada ⓘ |
| depositionalEnvironment |
restricted lagoonal environment
ⓘ
shallow marine setting ⓘ |
| fossilPreservationQuality | exceptional ⓘ |
| geologicAge | Silurian ⓘ |
| geologicProvince | Michigan Basin NERFINISHED ⓘ |
| geologicTimeSpan | Middle Silurian NERFINISHED ⓘ |
| hasColor |
black
ⓘ
dark brown ⓘ |
| hasEconomicUse |
building stone
ⓘ
dimension stone ⓘ |
| hasOutcropsIn | Niagara Escarpment area NERFINISHED ⓘ |
| hasOutcropsNear |
Eramosa River valley
NERFINISHED
ⓘ
Guelph, Ontario NERFINISHED ⓘ |
| knownFor |
exceptional fossil preservation
ⓘ
finely laminated bedding ⓘ well-preserved sedimentary structures ⓘ |
| lithology |
dolostone
ⓘ
limestone ⓘ |
| locatedIn |
Ontario
ⓘ
southern Ontario NERFINISHED ⓘ |
| namedAfter | Eramosa River NERFINISHED ⓘ |
| overlies | Amabel Formation NERFINISHED ⓘ |
| partOf |
Paleozoic stratigraphy of Ontario
ⓘ
Silurian stratigraphy of the Michigan Basin ⓘ |
| period | Silurian ⓘ |
| preserves |
exceptionally detailed fossils
ⓘ
fine sedimentary structures ⓘ |
| primaryLithology |
finely laminated dolostone
ⓘ
finely laminated limestone ⓘ |
| region | Great Lakes region NERFINISHED ⓘ |
| rockType | carbonate rock ⓘ |
| stratigraphicUnitOf | Niagara Escarpment NERFINISHED ⓘ |
| texture | fine-grained ⓘ |
| underlies | Guelph Formation NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.